John morgan



@uiten giants stwt @fitta IMPROVED BOLT' AND RIVET MACHINE.

dlg- .Sallam referat it im time tintedv ndert mit mating vgaat nf itsramt.

Bc it known that I, .IHN MORGAN, J1?, 0f Wheeling, county of Ohio, andState 'of West Virginia, have invented a new and useful Rivet Machinefor manufacturing boiler and other rivets; and I do hereby declare thatthe following is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theaccompanying drawings, making a. part of this specification.

Description. l A, frame. B, main shaft. C, side shaft. D and E, camsthat work mandrel U by arm L. F and I,- cams that work header N by armM. G, back bearing of arm L.- H andO, back Abearing of arm M. J and T,front bearing of arm L. K, front bearing of arm M. AL, arm from mandrelU to cams D and E. M, arm from header N to cams F and I. N, header. vP,plate which supports die X. S, hole "in` die X, where header N Ventersand forms the head of the rivet. U, mandrel. V, back end of hole in dieX, where mandrel U stops and forms a back for the mould. W, head, withhole D in, to receive blank. X, die where rivet is'made, and which isremovable. Y, arm from head Wto cam 8. Z, key to hold head W on arm V.B. D, mitre- "wheel's, 2, arm from knife 10 to cam 11. 3 and 9, bearingson yoke for cam 8. v 4, keysto hold die X in .place 5and 12, bearings onyoke for cam 11. 6,-. changeable guide for the iron. 7, half hole inguide 6, for the iron. 8, cam that drives head W. 10, knife, movable.11, cam that drives knife 10. 13, journal and glidecaps. 14,power-wheel. 15, ily-wheel. 16, shield. 1 1 1, slot in shield 16. K Lrepresents the die X cut in two, showing the mould. MO, die X out of theplate P; 4 are the key-beds, and S the hole where the header N enters. GH, arm Y, with yoke, and also showing a side view of the head and hole CD, where the blank is carried. P S, arm 2 and knife 10, knife beingfastened to the arm'by set-screws in slots z :u in lugs 4or cars of theknife. i l

. v i Explanation.,

The bar is put into the hole C D in head-W.A Knife 10 cuts the blankolf. Cain 8 `then drives head W over until the hole G D is exactly evenwith hole V in die X. Mandrel U is then pulled up by cam D untikitpushes the blank into hole'V, the mandrel U forming the back of the holeV while the blank is being headed, it (the mandrel) being held by a fullpoint on cam D. -As 4soon as the blank is pushed into the hole V theheader N is thrown into hole S by cam F until it reaches the shoulder inthe mould or die X. -As soon as it is down it immediately returns, andat the same time the mandrel U is pulled clear through the die X, so asto deliver the rivet, by cam D, and then immediately returns to itsfirst position, (clear back,) being thrown by ycam E. Head W is-nowreturned by cam .8, and the knife having already returned, it is ready'to-receive the iron again. The head W removes from arm Y, beingfastened by key Z. To make longer or shorter rivets, the head W must bethicker or thinner through,.thus cutting longer or shorter blanks, asmay be required. The side of the head W must always work against theplate P, it (the head) receding or extending on side next the knife. Theknife 10 is extended or withdrawn on arm 2 by means of set-screws inslots x a: in thc lugs or ears. The die X removes, and, in variation ofsizes, extends or recedes on side n ext the header N. The header Nremoves, and the changes are longer orshort-er, from the back to thepoint, 'as may be required to Areach the shoulder in the hole S in thechange of dies. The mandrel U always works the saine distance, drawingback far-enough for the longest blank, and always Working up to the edgeof thel hole V in the {i1-st n'iotion,and through in the next. Thismandrel mnstbe changed to suit the different thicknesses, which is doneby unscrening from shoulder L. The shield 16 is to keep the blank fromjumping out of the hole CDwhile being thrown from the knife to themandrel. It is moved in or out by a screw in slot 11,1. Y i

In this machine the rivet cari be made perfectly round, and without aseam or burr, and the outside edge of the head can be made to extendeven below where the head joins the shank, if so required. It will alsomake an equal, if not greater, number of rivets than 'any machine nowvin use.

The rivets, as heretofore made, have a burr clear alongvthe sides of theshank and over thc head, and the shank oval, both of which faultsrequire the hole. in the boiler plate to be larger than reallynecessary, thus weakening the. plate. And again, their heads are madeconvex on the under side, so that when they are put i into the hole thehead bears on the edge of thehole 'rst, a weak spot. In rivets made bythis machine these defects will all be done away with, and the head Vofthe rivet made concave on its .under side, by which means the outer edgeof the head will relieve the strain from, the .edge of the hole.

'Figure 1 is a perspective view of one half of the die Afor makingutheunder side of the head of the rivet concave, the rim of this die x',forming the head of the rivet, being convex, as shown. il

Having thus described my invention, what I claim as new herein, anddesire to secure by Letters Pat-V ent, is-

1. The construction and arrangement of the solid die zo', follower U,header N, and cams D, E, F, and I upon the shaft B, substantially asherein shown and described, for the purpose spe'oied.

2. The carrier W, knife 10, and shield 16, combined, arranged, andoperatinggin the manner and for the purpose specified.

3, The solid die x', for forming the under side ofthe head of the rivetconcave, as herein set forth, for the purpose specified.

JNO. MORGAN, Jn. Witnesses: v

T. R. LAIRD,

J. W. WARDEB.

